Exert pressure on "authorities" to distance themselves from or refuse to recognize opponents.

You can also see from these e-mails the scientists' panic at any dissent appearing in the scientific literature. When another article by a skeptic was published in Geophysical Research Letters, Michael Mann complains, "It's one thing to lose Climate Research. We can't afford to lose GRL." Another CRU scientist, Tom Wigley, suggests that they target another troublesome editor: "If you think that Saiers is in the greenhouse skeptics camp, then, if we can find documentary evidence of this, we could go through official AGU channels to get him ousted." That's exactly what they did, and a later e-mail boasts that "The GRL leak may have been plugged up now w/new editorial leadership there."

Not content to block out all dissent from scientific journals, the CRU scientists also conspired to secure friendly reviewers who could be counted on to rubber-stamp their own work. Phil Jones suggests such a list to Kevin Trenberth, with the assurance that "All of them know the sorts of things to say...without any prompting."

So it's no surprise when another e-mail refers to an attempt to keep inconvenient scientific findings out of a UN report: "I can't see either of these papers being in the next IPCC report. K and I will keep them out somehow-even if we have to redefine what the peer-review literature is!" Think of all of this the next time you hear someone invoke the authority of peer review-or of the UN's IPCC reports-as backing for claims about global warming.

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The picture that emerges is simple. In any discussion of global warming, either in the scientific literature or in the mainstream media, the outcome is always predetermined. Just as the temperature graphs produced by the CRU are always tricked out to show an upward-sloping "hockey stick," every discussion of global warming has to show that it is occurring and that humans are responsible. And any data or any scientific paper that tends to disprove that conclusion is smeared as "unscientific" precisely because it threatens the established dogma.